Question

give the calculation for preparing 100ml of 0.1N NaOH from 4N NaOH ​

Answer 1

1.volume is given as (100÷1000)litres

2.Normality of 100 ml of NaOH is 0.1

3. molar mass of NaOH is 23+16+1=40gram

4. As, acidicity of NaOH is 1

5. therfore, gram equivalent is equal to 40÷1

=40

6. for 4N,

normality = no. of gram eqivalent ÷ volume

therefore,

4=40÷x

requied no. is 10litre